leaders say gaddafi is ignoring. a burning jet falling out of the sky over the rebel held city of benghazi. leaders say they shot down a pro gaddafi jet as it attempted to bomb the city after the cease-fire. it could be a rebel fighter jet there are reports. before leaving for south america, president obama issued an ultimatum from the white house, warning gaddafi that an including establishing a he no ply zone over libya. >> left uncheck we have every reason to believe that gaddafi would commit atrocities to his people and thousands would day. the a humanitarian crisis would ensue and the entire reason could be destabilized endangers our allies and partners. >> and the president said the u.s. ground forces would not be involved in any ground action in libya. to the latest news in japan. japanese officials say radioactive iodine has been detected in tokoyo drinking water as well as other areas and japan's government says that spinach and milk taken from farms 20 miles from crippled nuclear plants have radiation 20 ti